Excavating and dumping apparatus



Nov. 24, 192.5-

J. H. COYNE EXCAVATING AND DUMPING APPARATUS Filed Feb. 27, 1922 2 Sheets-Sheet 1 ww n ATTORNEY Nov. 24, 1925- J.H.CbYNE EXGAVATING AND DUMPING APPARATUS Filed Feb. 27. 1922 2 Sheets-Sheet 2' INVENTOR .2471274u5 AZ 2 ;ua'

ATTORNEY Patented Nov. 24;, l925.

JAMES H. OOYNE, OF IGBT TOWNSEND, VIASI'IINGTON.

EXCAVATING AND DUMPING APPARATUS.

Application filed February 27, 19522.

To all 107mm it may concerlti Be it known that 1. JAMES H. Corns, a citizen of the United States, residing at Port Townsend, in the county of Jefferson and State of YVashington, have invented certain new and useful Improvements in Excavating and Dumping Apparatus, of which. the following is a specification.

This invention relates to excavating apparatus and its object is, generally stated. the perfecting of apparatus of this character whereby the excavating and handling of material may be more conveniently and economically performed than hitherto.

More specific objects and advantages of the invention will appear in the following specification.

The invention consists in the novel construction, adaptation and combination of parts hereinafter described and claimed.

In the accompanying drawing,

l igure 1 is a side elevation of apparatus embodying my invention. Fig. 2 is a plan view of the same. Fig. 3 is a transverse sectional view taken substantially through 33 of Fig. 1, the scraper being omitted, the elevator being represented in position for dumping a load into a vehicle which is represented in end elevation. Fig. 4: is a view in side elevation of the apparatus shown applied and with the scraper shown in the position it will assume in transporting a load to the elevator. Fig. 5 is a plan view to a larger scale of the elevator regulating devices shown in Figs. 1 and 2.

In said drawings, the reference numeral .10 designates an excavating scraper of a well known type, the same comprising side wall members 11 and a back wall 12 which preferably of an arcuate shape and may be equipped along one of its edges with digging teeth 13. r

The scraper operates to excavate and convey a load of material by being drawn for ward or in the direction of arrow in Fig". 4;, by means of a power driven drum 1.5 through the medium of a drag cable 16 which is attached to the scraper bail 1.7.

A haulbaek cable 18 extends from a winding drum 19 to and about pully 20 and thence returns as a lead 18 which is secured as at 21 to the rear end of the scraper.

The pulley 20 is attached to a post 22, tree or other support at the opposite side of Serial No. 539,671.

the excavating work from the position. of said operating drums.

These drums constitute elements of a hoisting or hauling engine which, like all of the above mentioned parts may be of any well. known or suitable construction. According to the present invention I provide a base frame 23, preferably of wood, having longitudinal side or runner members 23-. Said engine is secured upon said frame adjacent to one end thereof and rigidly secured to said. frame adjacent its other end is a framework which may advantageously be formed of structural steel or iron. As shown in the drawings, said frame work COl'lSlo of four corner posts 24 which are connected at their lower ends, as by gusset plates 25, to the respective members of the base frame.

The upper portions of the posts 2% are rigidly connected to each other by longitudinal and t 'ansverse bars 26 and 27. Said framework is furthermore secured by tie rods 28 to the base frame. Provided within said. framework is an elevator 29 of substantially rectangular shape in horizontal section, and is formed with a floor 30, a back wall 31 and side walls which on tend transversely from said back wall and terminate at opposite sides of an opening 33 located at the front of the elevator which, as shown in Fig. 2, protrudes beyond a side of the framework. At or near the front end of the elevator the same is provided with arms 31 upon which are mounted rollers 3 lwhich are arranged to travel. in guideways, such as 35, afforded by bracket attachments 36 upon the posts 24- at one side of the framework.

When it is intended, however, to operate the elevator in a reverse position from that in which it is illustrated, bracket attachments 86 would be applied to the posts at the opposite side of the framework. The lower portions of said. guideways are disposed to be substantially vertical, but the upper portions, denoted by 35 are inclined out wardly laterally of the frame whereby in the raising of the elevator the latter is outwardly with respect to the mnewo Hoisting cables 37, 38, and

are connected to their respective co to extension arms such as 29 of the elevat' extend upwardly to and about p s whence they extend downwardly,

38 39 and 40 and thence beneath pulleys or rollers 42, 42 and 43 to regulator devices, which are best shown in Fig. 5, and to which reference is now made.

The cables 37 and 38, which are connected to the end of the elevator in proximity with the guide rollers 34, are connected to and extend, as at 37 and 38 from one end of a coupling 44. The cables 39 and 40, which are connected to the rear end of the elevator, are extended about a sheave or sheaves. and returning as at 39 are connected to and extend from the coupling 44 in opposed relations to the connection therewith of the cables 37 and 38. The sheaves 45 are mounted in a shell 46 which is connected, as at 47, with an end of a controlling cable 48 whose other end extends to and is arranged to be wound about or unwound from a drum 49 to effect the raising and lowering of the elevator. Said controlling cable also serves to effect the tilting of the elevator about the axis of the rollers 34, when in the raisingof the elevator the rollers 34 are traveling upwardly in the upper portions of the respective guideways and prior to the termination of the upward travel of the rear end of the elevator.

To such ends the coupling 44 is formed with or is rigidly connected. to a bar 50 which extends through and serves as a guide for the shell 46 which carries the sheaves 45. Provided on the bar 50 is a protuberance 51 which cooperates with a hook 52 to releasably engage aroller 53 which is connected by links 54 to said shell.

Said hook is of. substantially the shape in which it is shown in. Figs. 2 and 5, and has its shank 52 pivotally connected by a pin 55 to said coupling so as to enable the hook bill 52- to be swingable toward or from the protuberance 51. I

The hook is normally retained in its illustrated position with respect to said protuberance by means of an extensible spring 56 for the purpose of. releasably engaging and retaining in engagement the roller 53 when the same is in its dotted line 53 position, Figs 5.

To release the roller 53 the hook is swung away from said protuberance by means of an arm 52 on the hook. meeting a stationary stop 57 provided in the path of its travel above the base trame. The: roller 53- is normally retained in juxtaposition with the bar 50 as by means of a leaf spring 58 and Which serves to direct the roller against a bevel face 52- of the hook to swervethe same out. of the path of the roller when being brought into position to be engaged by the hook.

The actionro-f the regulating device shown in Fig, 5 is as follows: hen the elevator is being raised. horizontally, the regulator parts occupy the relative positions in whichthey are shown in Fig. 2, that is to say the shell 46 is held in engagement with the coupling 44 by reason of the roller 53, which is carried by the shell, being engaged by the hook 52 and the bar protuberance 51, which are carried by the coupling.

This condition obtains until the elevator in its ascent reaches a position whereat the rollers 34 approach the upper ends of the guideways therefor.

During the termination of such upward travel 01 the rollers 34 the hook arm 5) encounters the stop 57 and is thereby caused to be swerved rearwardly to release the roller 53 from its connection with the coupling. lVhen this occurs the continued pull of the cable 48, which is applied through the medium of shell 46, effects the raising of the rear end of the elevator into the position in which the same is shown in Fig. 3 to dump the material from the elevator into a vehicle such as 60, for example, to be conveyed away.

Provided above the elevator floor and be tween the side walls 32 thereof is a rack consisting of side bars 61 pivotally connected intermediate their lengths, as by pins or bolts 62, to the adjacent side walls of the elevator.

The side bars 61 have secured thereto rails 63 which are disposed transversely of the elevator and serve as track elements upon which the excavator scraper travels when drawn by the cable 16 over the elevator to deposit the scraper load thereupon. The rack bar-parts 61 at the rear of the elevator, as shown in Figs. 2 and 3 are connected to the ends of ropes 64 whose other ends are connected to the adjacent member 23 of the base frame. Said ropes are of less lengths than the vertical travel of elevator whereby the ropes serve in the upward 1110\611'181113 of the elevator to raise the rack portion within the elevator so not to interfere with the discharge of material from the latter when the same is tilted as in Fig. For the purpose of directing the scraper from the ground over the end of the base frame and onto the rails 63 of said rack, I provide runways 65' and 66 which are h ingedly connected at 67 with each other and to the base frame and I provide at the inner end of the runway66 an apron extension 68 therefor. This apron is hinged, as at 69, tothe runway so as to extend over the adjacent side of the elevator, said apron being advantageously counter weigl'ited by a heavy body 70 so as to facilitate its being turned upwardly by the elevators ascension and to be readily returned over the same by the scraper when drawn over the apron onto the rails 63.

The construction of the invention in its preferred embodiment and the operation of the same will, it is thought, be understood from the foregoing description.

What I claim, is,

1. In apparatus of. the character described, an elevator, a framework in which said elevator operates, power operated cables for elevating the elevator, means provided on said :t'ramework for guiding the elevator in vertical and lateral directions successively, and controlling devices actuated by the movement of the cables and cooperating with said means to effect the tilting of the elevator during the lateral movement of the same.

2. The combination with an elevator, a power operated drum, and cables operatively connecting said elevator with said drum, of elevator controlling means connected to said cables, and a stop cooperating with said controlling means to effect the tilting of the elevator in proximity with the end of its upward travel.

3. The combination with an elevator, a :iramework, brackets rigid with the frame work, said brackets being provided with guideways, and cables for hoisting said elevator, and means carried by said elevator and operating in the bracket guideways, said means being engageable with the brackets at the upper ends of the respective guideways to limit the elevation of one end of the elevator whereby the tilting of the elevator is eliected by the elevator hoisting cables.

4-. In apparatus of the character described, an elevator, cables respectively connected to the front and rear ends of the elevator for suspending the same, guide pulleys for said cables, a coupling to which all of said cables are connected, a shell, a sheave provided in said shell for leading the cables from the rear end of the elevator to said coupling, a power operated cable connected to the shell for actuating the aforesaid cables to raise or lower the elevator, means for releasably connecting said coupling to said shell, and means rendered operative by said power cable in the hoisting of the elevator to effect the disengagement of the first named means with respect to the coupling and shell whereby the cables from the rear end of the elevator are actuated to effect the tilting of the elevator.

The combination with an excavating scra 'ier, an elevator, means for operating said scraper and for hauling the same onto and from the elevator, and means for sue cessively hoisting and. tilting the elevator,

of a frame pivotally connected to said elevator and serving to support said scraper in spaced relations above the elevator floor, and means rendered operative in the upward travel of the elevator for tiltably raising said frame with respect to the elevator floor.

6. The combination with an excavating scraper, an elevator, means for operating said scraper and for hauling the same onto and from the elevator, and means for rais ing and lowering the elevator, of a frame pivotally: connected to said elevator and serving to support said scraper in spaced relations above the elevator floor, and means rendered operative in the upward travel of the elevator for tiltably raising said frame with respect to the elevator floor.

7 In apparatus of the character de scribed, the combination with an excavating scraper and means for operating the same, of an elevator, means for directing said scraper into a postion to deposit its lead upon the elevator, means for guiding the elevator in its vertical movements, and hoisting means cooperating with the elevator guiding means whereby said elevator is tilted into a dumping position in the upward travel of the same.

8. In apparatus of the character described, a base frame, framework secured upon said base frame, an elevator mounted for vertical movements in said framework, rollers provided upon said elevator adjacent to one end thereof, means rigid with said fran'iework to receive said rollers and serving to guide said elevator in vertical and horizontal directions, and elevator hoisting means, said hoisting means comprising a power operated hoisting drum, a main cable adapted to be wound. upon said drum, elevator supporting cables respectively connected to the front and rear ends of the elevator, operative connections between. the main cable and said supporting cables, said operative connections including regulating devices, and means rendered operable by the main cable in effecting the elevation of the elevator whereby said regulating devices are influenced to cause the front and rear ends of the elevator to be raised to unequal heights.

Signed at Port 'lownseml, W ashington,

February, 1922.

JAMES H. COYNF. 

